Home / 68,989,653.83-103,484,480.86-28,039,498.79

Finding the Fourth Proportional to 68,989,653.83, 103,484,480.86 and 28,039,498.79

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Solution

The fourth proportional to 68,989,653.83, 103,484,480.86 and 28,039,498.79 is: 42,059,248.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,989,653.83 : 103,484,480.86 = 28,039,498.79 : x
  2. Step 2: Convert to fraction form
    68,989,653.83/103,484,480.86 = 28,039,498.79/x
  3. Step 3: Cross multiply
    68,989,653.83x = 103,484,480.86 × 28,039,498.79
  4. Step 4: Simplify right side
    68,989,653.83x = 2,901,652,975,857,748
  5. Step 5: Solve for x
    x = 2,901,652,975,857,748/68,989,653.83
  6. Step 6: Final answer
    x = 42,059,248.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.